Diagnostic of ICF target inhomogeneous compression by characteristic X-ray radiography
Andreev A.A.1,2, Bespalov D.S.1, Platonov K.Yu.3, Sedov M.V.4
1St. Petersburg State University, St. Petersburg, Russia
2Ioffe Institute, St. Petersburg, Russia
3Peter the Great Saint-Petersburg Polytechnic University, St. Petersburg, Russia
4Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow, Russia
Email: dmitriy.bespalov.s@gmail.com

PDF
A scheme is considered and the parameters of a multipulse X-ray source for obtaining images of the compressed state of a primary laser thermonuclear target are determined. As an example of a source, we consider the characteristic radiation of an iron secondary target with focusing on it of several picosecond laser pulses of subrelativistic intensity. The proposed technique makes it possible to determine the relative large-scale inhomogeneity of the energy release of laser beams that irradiated the thermonuclear target, based on the results of X-ray diffraction of a compressed thermonuclear target, and to estimate the decrease in the neutron yield caused by the asymmetry of the compressed target. Keywords: picosecond laser plasma, characteristic X-ray radiation, target in laser thermonuclear fusion, iron secondary target, backlighter image.
Publisher:

Ioffe Institute

Institute Officers:

Director: Sergei V. Ivanov

Contact us:

26 Polytekhnicheskaya, Saint Petersburg 194021, Russian Federation
Fax: +7 (812) 297 1017
Phone: +7 (812) 297 2245
E-mail: post@mail.ioffe.ru